It was a great Memorial Day weekend in Brooklyn, and it wasn’t just because of the beautiful summer weather. The expansion of the Brooklyn Bridge Park on Pier 6 was finally completed on Saturday morning, offering an additional 1.8 acres of sand volleyball courts, lighted pathways, and two 15,000-square-foot lawns with native plants and trees. The extension also includes an outdoor food court built with longleaf yellow pine salvaged from the park.